Internal-combustion heating system.



1. H. BUCHANAN.

YNTERNAL COMBUSTiON HEATING SYSTEM.

APPLICATION FILED APR. 29, 1916.

mma Apr. 23,1918. E I H l;

175's dforne pnrr nrnsrnnwr or rrcn.

- remiss H. Buchanan, on Los anentnscamronnm/ menace,

7 Application filed. April 29,

To all whom it mag concern:

Beit known'that lt, JAMES H. BUCHANAN, a citizen of the United Statesresiding; at LosAngeles, inthecounty of' Los Angeles andState ofCalifornia, have invented new and useful Improvements in Internal-Combustion Heating Systems, of which the following is a specification;

This inventionrelates to internal cornbustion heating systems, and it has for its object to provide improvements ofthis general character which will beapplicable toawide range of uses and in which many of the objectionable features of heatingsysterms, as heretofore organizechwill be eliminated.

In accordance with thepresent invention, the combustible gas and the air necessaryto support combustion, areboth suppliedto a suitable combustion head and thence the products of-combustion are'delivered to a coil, radiator, or thelikewhich is completely closed as it against invasion by the air of a room. Ail-exhaust pipe-is provided to conduct the products of combustion away from the coil and out of the room or chamher in which the coil or radiator is installed. By the provision of electrical ignition means for the combustible fuel and air portion of the medium'being heated for any fraction thereofto assist in supporting combustion. The system is shown as lnsta'lled and applied to the heating of the interior of v a room or building, though many otheruseful'i applications of the invent on will read ily suggest themselves, such as theheatmg' of liquids and the like by the provision of a suitable vessel or the like adapted tocontain, such liquids and surrounding the coil or radiating portion of the system. It is also evident that the coil or radiating portion of the system may be placed in contact with or proximity man other substance or device to be heated.

A further object of the invention is to provide apparatus of the general character stated which will be relatively simple and inexpensive in construction and installation, not liableto get out of order or repair, which ,willbe highly efficient, andwhich will be rnrnnnnn-ooivrnusrron HEATING srs'rnnt specification ofLetters Patent. Patgntfl 1916. s'eriaino.e4.,515.

bers and features, and mode of operatiomall as hereinafter described, shown in the draw ing, and finally pointed out in claim. In the drawing:

Apr. as, rare;

I sociation andinterrelation of parts, mem- Figure 1. is a fragmentaryside elevation of a heating system constructed, organized and installed in accordance with the invention, the same being shown as installed" in a building, the fragmentof a wall and of a floor being shown in sectlon;

Fig. 2 is a central vertical sectional detail view of certain features of the invention shown in Fig. 1, the view being upon an enlarged scale; and,

Fig. 3 is a fragmentary plan view of a multiple unit system constructed and organized in accordance with the invention.

Corresponding parts in all the figures are designated by the same reference characters.

.Referring with particularity to the draw ing, in the embodiment of the invention therein shown, A designates a combustion chamber, shown as in the-form of a radiator, B designates the combustion head thereof, C designatesair supply means, D designates fuel supply means, E designates ignition means, and F in Fig. 1 designates control means for the air-supply means 0.

in each instance designates controlmeans for the air supply means 1n Fig. 3. o

The combustion chamber A 1s shown as a pipe coiled intermediately of 1ts ends as at a, and threadedlnto the head B as atl. The pipe at termlnates in an exhaust portlon 5 at the end opposite the combustion head B, such exhaust portion being shown as passed through an aperture 6 provided in a wall 7 ofv a room in which the combustion chamber Ais installed. 8 designates the floor of such room. 7

The combustion head B is shown as comprising av tubular body 6 provided with a branch 6 and internally threaded at one end asat 9 to receive the threaded end 4 of the pipe a forming the combustion chamber. The other end of the tubularbody is preferably internally threaded as at 10 to receive a reducing bushing :11. The reducingbushing 11 is provided with a threaded aperturelQ to receive a burner tube 13 provided with an i' ekternally threaded enlargeinent 13* taking into the threads at the-aperture 12, so as to provide adjustment'iirthe combustion head "B, for-the burner tube 13. .A*lock nutrv e branch Z21 .is internally threaded at its terminus as at 15 torec'eive the threaded end 16 of a pipe 17. comprised within the an" secures .the burner: tube in place.

supply means C. "Thetubnlar body B is provided with an 'apertur.e;,18; slightly above the burner tube 13', which is preferably cene' trally located therein, a spark pluglfibemg threaded into": suCh apertureflS. as at 19*.

The organization of. the spark plug will be wel-tunderstood when. it is stated that a V plug; such as is usdini igniting the combus tible. char-gem gas. engines may be en ployed,-s uch plug: being provided with. an electrically grounded spark point QOand-an insulated spark. point 21. The insulated spark-point 21 is? formed on the end of a. rod

.22: extending through. the insulation of thef spark plug.

The ir supply means C preferably comprises the supply. pipe 17, a blower or the like 24 which may be driven by motor 25 directly coupled. therewith, and a suction or 7 intake-pipe 26,. which may be provided to 1 v[The fuel supply means D isshown ascomprising a gaspipe 27 leading from a suitable. 'source-ofsupply and passed through an orifice provided in the floor Sand ter- 'minatin'gin' a. control valve 28 preferably placed. sliggjhtly. belowythe combustion head .B and connected with the receiving end 1.5 ofthe burner tube: I r

I f The. ignition means E maybe of'any preferred. form" suitable for igniting gas and a air: admitted into. the combustion head B,

and. is shown as comprising a switch, push buttoin or the like 29 provlded 1n aprnnary electric circuit 30 whichcircuit may include a battery 'or'other source of supply of electrical energy 31, and extends through the primary winding 32 of an induction coil c, a secondary electrical circuit 3-3 Which may comprise a portion of the gas pipe'27 one of the circuit wiresv 33 being connected to .such gas pipe as at 33 and' the spark plug 19 described in. connection with the combustion head' B; A circuit wire 34E of the sec ondarv circuit is connected withthe insulated rod 22} of such spark plug.

The control means F for the air supply means G is shown as an electric switch controlling-the flow of electricity through the circuit wires 35 and supplying the motor 25. Such switch may be arranged to cut oil the circuit wires 35 and 36 from the supply .wires 37 and38, respectively, or to connect the circuit'wires 35 and 36, respectively,

. with such supply wires 37 and 38 which may lead from" any suitable source of supply of electrical energy.

In Fig. 3 a plurality of combustion chambers A, each being. connectedzwith the attendant features B, air. supply pipe 17, fuel supply means D, and, ignition means E are shown A. main air supply pipe: of which the plurality of air supply pipes 17. are

. branches, is; provided. Such main supply pipe 17 may: be supplied with air under pressure by the blower orithelike 25 being connected therewith and? motor driven as described in connection with the other figures. it common ed. to provide the, supply pipes 27, onev leading to each of the combustion heads. B. A common exhaust duct or pipe 39 is. provided, to which all. of the exhaust portions of the respective pipes on forming the combustion chambers A, are con nected. Each unit may be provided with ignition. means organized. like the ignition means hereinbefore described.

The air supply control means G may each comprise a valve 40 which the respective pipe I? is interruptedto receive. A valve 41. may be provided in each of the pipes a in the exhaust portions 5 thereof.

The operation, method of use and advantages of the improved internal combustion heating system will, be readily understood from the foregoing description, taken in connection with the accompanying drawing and the following statement NVhere the air supply control means are organized as at F, the throwing of the switchto supply electrical energy to the. m0-

tor 25 will result in the driving of the blower 2.4 by the. motor 25., and the forcing of air. under a slight pressure through the pipe 17 into the combustion head B, where gas supplied under'control. of the, valve 28 mingles with the incoming air and isignited by a spark at thespark points 20 and 21 resulting from actuation of the button or switch 29 to close the battery circuitv through the induction coil 0 to generate such spark. As long as the supply of air and gas. is properly regulated, the combustion thereof will proceed, the products of combustion escaping through the discharge portion 5- of the pipe. A of whichv such radiator or coil is formed. The supply of air and gas may be regulated to provide the required heat. Upon opening of the switch F the blower will cease to supply air and upon closing; of the, valve 28 the gas will be shut off, thus putting the apparatus out of operation. It

'as supply pipe d is provided and is branch is, of course, understood, that in the heating the air is not vitiated by products of combustion escaping into the room, nor is the air in the room depleted ofjoxygen as all air re quired to support combustion is supplied through the supply pipe '17 from a source outside of the room being heated. r

In the multiple unit system shown in Fig.

3 the air supplyis controlled, with respect to each unit, as required, by means of the valve 40 and the gas supply is controlled through the respective valve 28. The valve 41 in the exhaust portion" of the pipe a may beopened when the respective unit is in operation, and, may if desired, be closed to shut 01f communication with the common exhaust duct 39 when the unit is put out of operation. It is" evident that any one of the units shown in Fig. 3 may be independently operated or all such units may be operated fleptee or thia patent may he obtained for together, the only requirement being that a suificient supply of air under slight pres sure be maintained in the common supply pipe17. 7

Having thus disclosed my invention, I

The combination with a chamber, of a heating apparatus located therein and closed against communication therewith, comprising a closed head, a heating coil connected to said head and opening outside of said chamber, means for forcing air from outside of said chamber into said head, means forsupplying gas to said head, and electric means arranged to ignite the mixture in the closed head, substantially as described."

In testimony whereof, I have signed my name to this specification in the presence of two subscribing witnesses.

Witnesses:

ALFRED H. DAEHLER, FRANCIS L. ISGRIGGL.

five cents each, by addressing the Commissioner or Patemte Waemumou, D. E.

. JAMES u'euonamu claim and desire to secure by Letters Patent: v '30 

